Home / 281,890.58-422,006.40-188,163.86

Finding the Fourth Proportional to 281,890.58, 422,006.40 and 188,163.86

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Solution

The fourth proportional to 281,890.58, 422,006.40 and 188,163.86 is: 281,692.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,890.58 : 422,006.40 = 188,163.86 : x
  2. Step 2: Convert to fraction form
    281,890.58/422,006.40 = 188,163.86/x
  3. Step 3: Cross multiply
    281,890.58x = 422,006.40 × 188,163.86
  4. Step 4: Simplify right side
    281,890.58x = 79,406,353,168.70
  5. Step 5: Solve for x
    x = 79,406,353,168.70/281,890.58
  6. Step 6: Final answer
    x = 281,692.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.